Phytosanitary herbicide composition in the form of a microemulsion with low surfactant content and high compatibility in ultra-low volume spray liquids, and method for obtaining it

Abstract

Phytosanitary composition of herbicides formulated in the form of a microemulsion, having a low content of surfactants, high compatibility in ultra-low volume spray solutions, method for the formulation of said composition and tank mix.

1 . A composition in the form of microemulsion (ME) being highly compatible in spray solutions, even in Ultra Low Volume applications, wherein the composition comprises: 
       
         
           
                 
                 
                 
                 
               
                     
                     
                 
                     
                   Dimethylamino propalamide of saturated 
                   35-45% 
                   w/v 
                 
                     
                   and unsaturated fatty acids 
                 
                     
                   Coconut Fatty Amine Ethoxylate 
                   7-12% 
                   w/v 
                 
                     
                   Ethanol 
                   6-9% 
                   w/v 
                 
                     
                   Water 
                   20-30% 
                   w/v 
                 
                     
                   Active ingredient 
                   10-40% 
                   w/v 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
               
            
           
         
         said active ingredient being selected from 2,4-D, Dicamba, Fomesafen and Lactofen, the percentages being expressed in % w/V with respect to the total composition. 
       
     
     
         2 . The composition of  claim 1 , wherein the composition comprises: 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   Dimethylamino propalamide of saturated 
                   37%, 
                 
                     
                   and unsaturated fatty acids 
                 
                     
                   Coconut Fatty Amine Ethoxylate 
                   11%, 
                 
                     
                   Ethanol 
                    7%, 
                 
                     
                   Water 
                   22%, and 
                 
                     
                   2,4-D in its acid form 
                   30%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         3 . The composition of  claim 1 , wherein the composition comprises: 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   Dimethylamino propalamide of saturated 
                   42%, 
                 
                     
                   and unsaturated fatty acids 
                 
                     
                   Coconut Fatty Amine Ethoxylate 
                    8%, 
                 
                     
                   Ethanol 
                    8%, 
                 
                     
                   Water 
                   28%, and 
                 
                     
                   Dicamba in its acid form 
                   20%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         4 . The composition of  claim 1 , wherein the composition comprises: 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   Dimethylamino propalamide of saturated 
                   45%,  
                 
                     
                   and unsaturated fatty acids 
                 
                     
                   Coconut Fatty Amine Ethoxylate 
                   9%, 
                 
                     
                   Ethanol 
                   8%, 
                 
                     
                   Water 
                   28%, and 
                 
                     
                   Fomesafen in its acid form 
                   12.5%.   
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         5 . The composition of  claim 1 , wherein the composition comprises: 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   Dimethylamino propalamide of saturated 
                   43%, 
                 
                     
                   and unsaturated fatty acids 
                 
                     
                   Coconut Fatty Amine Ethoxylate 
                    8%, 
                 
                     
                   Ethanol 
                    7%, 
                 
                     
                   Water 
                   28%, and 
                 
                     
                   Lactofen in its acid form 
                   15%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         6 . A method of preparing the composition according to  claim 1 , wherein the method comprises the steps of, in order:
 loading a theoretical amount of the coconut fatty amine ethoxylate with 15 moles of ethylene oxide in a stirring tank,   adding under stirring all the desired ethanol, until homogeneity is reached,   adding under stirring half of the desired water, until homogeneity is achieved,   loading under stirring a total desired amount of dimethylamino propalamide of saturated and unsaturated fatty acids, and stirring until complete dissolution is achieved and a crystalline solution is obtained,   loading under stirring a total desired amount of an active ingredient selected from 2,4-D, Dicamba, Fomesafen and Lactofen, and stirring until complete dissolution is achieved and a crystalline solution is obtained,   adding under stirring the rest of the desired water in the formula, until reaching homogeneity and final volume, and   filtering the solution being thus homogenized.   
     
     
         7 . A tank mix comprising the composition according to  claim 1 , and as complementary a compound chosen from the group consisting of agrochemical component glyphosate, picloram, atrazine, sulfentrazone, cloransulam, mepiquat, paraquat, imazapyr, imazapic, imazetapyr, or mixtures thereof. 
     
     
         8 . The tank mix according to  claim 7 , further comprising 2,4-D and glyphosate as active components. 
     
     
         9 . The tank mix according to  claim 8 , wherein the glyphosate is in the form of potassium salt. 
     
     
         10 . The tank mix according to  claim 7 , further comprising Dicamba and glyphosate as active components. 
     
     
         11 . The tank mix according to  claim 10 , wherein the glyphosate is in the form of potassium salt. 
     
     
         12 . The tank mix according to  claim 7 , further comprising Fomesafen and glyphosate as active components. 
     
     
         13 . The tank mix according to  claim 12 , wherein the glyphosate is in the form of potassium salt. 
     
     
         14 . The tank mix according to  claim 7 , further comprising Lactofen and glyphosate as active components. 
     
     
         15 . The tank mix according to  claim 14 , wherein the glyphosate is in the form of potassium salt.